Ethylene glycol is used as a protecting group for carbonyl groups in organic synthesis. Treating a ketone or aldehyde with ethylene glycol in the presence of an acid catalyst (e.g., p-toluenesulfonic acid; BF3â¢Et2O) gives the corresponding a 1,3-dioxolane, which is resistant to bases and other nucleophiles.
Charles Street and Beacon Hill in Historic Boston, Massachusetts. Shops on Charles Street are an eclectic mix of boutiques, galleries, jewelry stores and home accessory shops with plenty of nearby restaurants, inns and historic sites.
River Fountain on the Bad River. 1  The Village of St. Charles is located in Saginaw County, approximately 20 miles southwest of Saginaw. As of the 2010 Census, there were 2054 residents who enjoy the small-town living that people desire while commuting to work in nearby Saginaw, Midland and other larger towns.